kinetic-center

import {Fill, Easing, interpolate, useBrand, useFrame, useDesignScale} from "odori";

export type KineticCenterProps = {
  /** Word groups that assemble into one centered statement. */
  groups: string[];
  accentIndex?: number;
};

/**
 * A centered statement assembled from timed word groups. Each group scales in
 * from slightly under its final size, so the line tightens as it completes.
 */
export const KineticCenter = ({groups, accentIndex}: KineticCenterProps) => {
  const frame = useFrame();
  const brand = useBrand();
  const scale = useDesignScale();

  return (
    <Fill
      style={{
        alignItems: "center",
        justifyContent: "center",
        padding: `${120 * scale}px ${140 * scale}px`,
      }}
    >
      <div
        style={{
          display: "flex",
          flexWrap: "wrap",
          gap: `${10 * scale}px ${24 * scale}px`,
          justifyContent: "center",
          maxWidth: 1560 * scale,
          textAlign: "center",
        }}
      >
        {groups.map((group, index) => {
          const delay = 6 + index * 9;
          const progress = interpolate(frame, [delay, delay + 24], [0, 1], {easing: Easing.standard});
          const accent = index === accentIndex;
          return (
            <span
              key={`${group}-${index}`}
              style={{
                color: accent ? brand.colors.accent : brand.colors.foreground,
                display: "inline-block",
                fontSize: 118 * scale,
                fontWeight: accent ? 600 : 540,
                letterSpacing: "-0.05em",
                lineHeight: 1.04,
                opacity: progress,
                transform: `scale(${0.9 + progress * 0.1}) translateY(${(1 - progress) * 22 * scale}px)`,
              }}
            >
              {group}
            </span>
          );
        })}
      </div>
    </Fill>
  );
};

import {defineComponentPreview} from "odori/preview";
import {KineticCenter} from "./kinetic-center";

export default defineComponentPreview({
  title: "Kinetic center",
  category: "Typography",
  description: "A centered statement assembled from timed word groups.",
  component: KineticCenter,
  canvas: {width: 1920, height: 1080, duration: "4s"},
  controls: {
    accentIndex: {type: "number", defaultValue: 2, min: 0, max: 5},
  },
  examples: [
    {name: "Default", props: {groups: ["Make", "motion", "useful."], accentIndex: 2}},
    {name: "Longer", props: {groups: ["Every", "frame", "is", "a", "decision."], accentIndex: 4}},
  ],
});

import {Scene, Video} from "odori";
import {KineticCenter} from "../components/kinetic-center/kinetic-center";

<Video>
  <Scene id="kinetic-center" duration="4s">
    <KineticCenter
      groups={[
        "Make",
        "motion",
        "useful."
      ]}
      accentIndex={2}
    />
  </Scene>
</Video>